I came across QSSTV today. It's a relatively new Linux program for SSTV and DRM.
The config suggests that it can use a number of different external radios as transmitters. What I'd really like to try (as mentioned in this post: Video transmission between ATV and SSTV), is send images from a HackRF One, initially, to a nearby RTL-SDR dongle.
However, neither the Hack RF One, or RTL-SDR are listed in the radio setup page (which appears to use Hamlib as a source).
Has anyone had success with the above, either with QSSTV, Hamlib (maybe with a different program), or even with GNU Radio Companion?
Indeed, is there much in the way of SDR SSTV/DRM experimentation?